A rotary positron emission computed tomography device is developed for human brain and
animal studies. The device utilizes 64 rectangular BGO detectors arranged at unequal …

The image-forming performance of multilayer positron tomographs for extended sources is
evaluated analytically. The analysis is simplified by “rotation transform,” by which three-…

This paper proposes a continuously rotating positron ECT system, in which the detectors are
arranged on a circular ring with "non-uniform" spacing so as to provide much finer sampling …

A new technique is presented to improve the count rate capability of a scintillation spectrometer
or a position sensitive detector with minimum loss of resolution. The technique is based …

Quad BGO detectors and the timing and positioning discriminators have been developed for
high sensitivity multilayer positron computed tomographs. Each detector consists for …

In recent years there has been growing concern over the biological effects of low-dose X-rays,
but few studies have addressed this issue. Our laboratory had observed flies (Drosophila …

Twin BGO detectors and timing pulse shape discriminators for crystal identification have
been developed for high spatial resolution positron emission tomography. Each detector …

A new method is presented for determining the statistical component of the resolution
separately from the non-statistical component on scintillation detectors. In this method, a …

The local noise property of a 3D PET reconstructed image is investigated for a uniform-activity
sphere distributed in a constantly attenuating spherical object. The positional dependence …

ALstract: Scvcral itcrativc rccOnstruction methods apprOpriate for clnission tomography arc
comparcd in rcgard to thc ratc of convcrgencc and ilnagc quality, by using thc noisc‐ frcc and …